Over 15 years experience of providing support of MEAN WELL Power Supplies
Mean Well DCWN03B-12 DC-DC Converter - 3W 18~36V DC in 12V out 125mA
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Description
Description
The DCWN03B is a 3W Mean Well. power converter. and an input range of 4.5~9Vdc.
Key Features
- ✓ Input voltage range: 4.5~9Vdc
- ✓ 3KVDC reinforced I/O isolation
- ✓ Protections: Short circuit / Overload / Under voltage
- ✓ Safety approvals: EAC TP TC 004
- ✓ 3 years warranty
Specifications
Specifications
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BrandMean Well
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SeriesDCWN Series
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Power Rating3 Watt
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Output Voltage12 Volt
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Rated Current0.12 Ampere
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Input Voltage18V~36V
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Standards MetCE,EAC
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Operation ModeConstant Voltage
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Operating Temperature-40°C~90°C
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Warranty3 Year
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Length3.18 cm
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Width2.03 cm
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Height1.02 cm
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Weight0.01 kg
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Payment & Security
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Frequently Asked Questions
What is the DCWN03B-12 typically used for?
The Mean Well DCWN03B-12 is typically used for isolated low-power DC-DC conversion from an 18-36V DC source to a regulated 12V output. With 3W rated power and 0.125A output current, it fits compact auxiliary and control circuits that need isolated 12V power.
Is the DCWN03B-12 a good fit for 18-36V input systems that need 12V output?
Yes. The DCWN03B-12 is intended for 18-36V input and 12V output service, provided the load stays within the unit's 3W and 0.125A output capacity.
Can the DCWN03B-12 be used in isolated low-power support circuits?
Yes. The converter includes 3KVDC I/O isolation, no minimum load requirement, and a compact DIP24 package, making it suitable for isolated auxiliary 12V rails in small electronic systems.
Is the DCWN03B-12 suitable for broad operating temperatures?
It is rated for -40°C to +90°C working temperature, which makes it suitable for demanding protected electronic environments. It should still be used inside equipment or enclosure-protected systems.
How does the DCWN03B-12 compare with other DCWN03 12V variants?
The DCWN03B-12 provides 3W at 12V from an 18-36V input range. The A, C, and E variants provide the same general 12V output class but with 9-18V, 36-72V, and 4.5-9V input ranges respectively. The main difference is the source-side voltage window.
